Finding the Third Proportional to 92,280 and 121,171.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,280 : 121,171.50 = 121,171.50 : x
2. Step 2: Convert to fraction form
   92,280/121,171.50 = 121,171.50/x
3. Step 3: Cross multiply
   92,280x = 121,171.50 × 121,171.50
4. Step 4: Simplify right side
   92,280x = 14,682,532,412.25
5. Step 5: Solve for x
   x = 14,682,532,412.25/92,280
6. Step 6: Final answer
   x = 159,108.50